I have seen other people having this issue in the past too.
I recall that removing negative wire to the battery for a few minutes (after making sure all wiper and signal arms are in off state) and reconnecting solves it.
However you will need to reset your radio clock and stations.
if that doesn't help you may want to check the ground on the drivers side headlight is clean and fully connected as there has been some discussion of bad ground on headlight triggering wiper motor since they are on a similar lead.
Last edited by chapco; 01-03-2014 at 04:34 PM.